Pulverizing device



Aug 24, I

W. S. MORTON PULYERIZING DEVICE :5 Shets-Sheet 1 Filed August 21, 1925 latented Aug. 24, 1926.; I

s'r Tss PATENT OFFICE.

'WALTEB S. MORTON, OF NEW YORK, N. -Y., ASSIGNOR OF THIRTY-FIVE ONE-HUN-' DBEDTZES TO WILLIS H. BOTSFORD AND THIRTY ONE-HUNDREDTHS TO ARCHI- Y HEDES J. IAMES', ZBOTH OF NEW YORK, N. Y. r

' PULVEBIZING DEVICE.

Application filed August 21, 1925. Serial m. 51,551,

1 This inventionrelates to improvements in pulverizing devicei and especially to a device means therefor, suction means, suction-control means, outlets from the collector for tailings, elevating means for the tailings,

elevating means for materials to be pulverized, etc.

ize refractory materials by' subjecting the particles thereof to a mutual impact due to the action thereon of opposing jets of superheated steam or gases under high velocities,

* the pulverizing action taking place in a con-.

fined compartment; but applicant, in addition thereto, provides means for causing further attrition of refractory. particles, this being brought about by causing said par ticles to be moved in a gyratory path at a high velocity in the pulverizing compartment there to be met by other particles moving at a high velocity in the opposite direction. The means for producing increased efiiciency of pulverization includes the pulverizing chamber mentioned, it having a lining of hard-burnt silica-or of similaror suitable materiaL-certain sections or portions of which are in the form of jet and 40 impact blocks, preferably replaceable, the

latter of which are so located as to present deflecting triturating surfaces for impelled material, these surfaces being disposed at an angle to the direction of movement of the steam-jets introduced. These jets, which may be parallel, or located in relative positions so that they are not in the same line, may be placed. horizontally, vertically or diagonally, according to the service required, 50. and serve to exert their force in rotary paths upon contact with the angularly disposed surfaces of the impact blocks, thereby set- 7 ,ting up whirls of material to cause a bombardment of a cyclonic nature of the paraway;

Heretofore it has been proposed pulver ticles one by another, thus assuring 'a most thorough pulverization of each particle by other particles during gyration and durin concomitant. impact and rebound back an fort-h from-tithe deflecting surfaces of the pulverizing impact faces or' targets. The distinguishing features of my improved pulverizing device will be described and claimed herein and are illustrated in the accompanying drawings, in which:

Figure l isan end view with walls ofthe sucti0n-pipe and outlet bin walls broken Fig. 2 tea section through the line 2-2, Fig. 1, and

Fig. 3 is a section through the lined-3,

Fig. 1.

Similar characters designate like parts in all the figures of the drawings,

Referring to the drawings, 2. designates a suitable structure adapted to enclose the pulverizing device of the invention, this structure being provided with a branched suctionpipe 3 leading therefrom, said pipe forming a discharge path for pulverized material. Suction-controlpipes 4, provided with dampers 4', collection. chamber 5, outlets 6 for tailings, and other necessary or desirable instrumentalities for the handling and dis-' posal of refractory material, both before and after pulverization are shown', 'said parts heing of any form and of any proportions required to effect the desired results.

Located within the structure 2 is a casing 7, preferably of brass, having a refractory lining 8, this lining being of hard-burnt silicaor other similar or suitable material.

Said "lining a is provided with inlets 9 for material to be pulverized, and with outlets I 10 for the material after pulverization. Inlets are also provided in the casing 7 and the lining 8 for the entrance. therethrough of steam-nozzles 11. Portions '12 of the lining 8 lying in the path of the jets from the steam-nozzles .11 are shown as removable from the casing 6 to, permit replacement for wear. Impact blocks13, with impact-- faces 13', are placed angularly in the lining 8, said faces 13 being placed at such an angle to the direction of steam-jets from nozzles 11 as to be most effective ,for circuladuced into the formed t e lining 8. Said blocks 13 tion and pulverization of material introulverizing compartment 14 the casing 7, each of said arms having therein a threaded passageway for a c' mplementary threaded member 16 secured, as at 17, to the block 13. By such means the blocks 13 may be adjusted to any position desired,

and all ordinary wear on the faces 13' may be compensated for without replacement of said blocks.

The nozzles 11 herein are so disposed relatively to each other that the jets issuing from any two opposing nozzles are directed in parallel lines, not in .the same line, there being no interference one with the other until their deflection from the faces 13'. Upon such deflection a whirling movement of the jet and the materialcarried thereby takes place, this whirl of material meeting the stream of another jet of material moving in reverse direction. This mutual bombardment together with the impact against the deflecting impact faces 18' rapidly reduces the material to aflnely divided state. Thus the action of the device is that of continuous abrasive impact with the impact faces 13 together with concurrent mutual abrasion of the particles.

As the device illustrated is adapted for the reduction to powder form of materials that are highly refractory, it is apparent that the portions of the lining 8 against which the particles of such material are hurled by the force of the jets from the nozzles 11 must be of a substance highly abrasive, and for this purpose I have found hardburnt silica very effective and long-lived. Moreover, any portions thereof worn away and entering into the pulverized product will not injure the same or effect its color.

The steam-impinging jet-blocks 12 are shown herein as removable endwise, while the deflectingblocks 13 may be slipped out crosswise of the device, when replacement is necessary. Said deflecting blocks 13, by reason of their adjustability, not only permit compensation for wear, but also the adjustment of the relative position of the blocks for the greatest etficiency in any particular case.

By the employment of hard-burnt silica lining, deflecting impact faces and offset pressure jets, the most thorough and speedy reduction of material is effected at minimum cost. The fluid pressure means employed by me may be any desired or most effective for any particular purpose such as supcr heated steam, air under compression, etc.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention designed without departing from the scope of the appended claims, I intend that all matter contained in the above description or shown in the accompanying drawings shall be interpreted merely as an operative embodiment of my invention and not in a limiting sense.

What I claim is:

1. In a device of the class described, in combination with a chamber provided with a lining of silica, of means for impelling the material to be acted upon into said chamber and against said lining at a high velocity and in different directions, the impact faces of said lining being arranged at an angle to the direction of the material impelled thereagainst and adapted to deflect said material to intercept'the material being impelled into said chamber in another direction and adapted to cause the same to be comminuted therein.

2. In a device of the class described, in combination with a chamber provided with a lining having a plurality of deflecting faces, of a plurality of pressure jets each being positioned for coaction with one of said deflecting faces for impelling the material to be acted upon into said chamber and against said faces at a high velocity, each jet and its coasting deflecting face being relatively disposed and arranged to cause its stream of material to be directed against its deflecting face and meetingthe stream from another jet after being so deflected.

3. In a device of the class described, in combination with a chamber provided with a lining having a plurality of deflecting faces, of a plurality of ressure jets adapted for coaction with one 0 said deflecting faces for impelling the material to be acted upon into said chamber and against said faces at a high velocity, each jet and its coacting defleeting face being relatively disposed and arranged to cause its stream of material to be directed against its deflecting face and meeting the stream from another jet after being so deflected.

4. In a device of the class described, in combination with a chamber provided with a refractory lining having oppositely placed deflecting faces, of oppositely directed fluid pressure jets adapted for coaction with said faces for impelling the material to be acted upon into said chamber and against said faces at a high velocity, each jet and its coacting deflecting face being relatively disposed and arranged to cause its stream of material to be directed against its deflecting face and meeting the stream from another jet after being so deflected.

5. In a device of the class described, in combination with a chamber provided with a refractory lining, of removable impact blocks of refractory material ositioned in said chamber, and means for impelling the material to be acted upon against said im pact blocks at a high velocity, each of said lit? lllii neeaete impact blocks being provided with a defleeting face arranged at an angle to the direction of the material impelled thereagainst and adapted to deflect said material to intercept the material being impelled against another of said impact blocks, thereby causing the same to be pulverized.

6. in a device of the class described, in combination with a chamber provided with a reiractor' lining, of removable jet and impact bloc 's of refractory material mounted therein, and means for impelling material to be acted upon against said impact blocks at a high velocity, each of said im act blocks being provided with a deflecting ace arranged at an angle to the direction of the material impelled thereagainst and adapted to deflect said material to intercept the material being impelled against another of said impact blocks, thereby causing the material to be pulverized.

7. in a device of the class described, in combination with a chamber provided with a refractory lining, of removable jet and impact blocks of refractory material mounted therein, said impact blocks being adjustable, and means for impelling material to be acted upon against said impact blocks at a high velocity, thereby causing the material to be pulverized.

8. In a device 0: the class described, in combination with a chamber provided with a lining, of removable and adjustable silica impact and jet blocks mounted therein, each of said blocks being provided with a deflecting face, and means for impelling material to be acted upon against said deflecting faces of said impact blocks at a high velocity and adapted to efilect pulverization of the material therein by such impact and by attrition due to the whirling movement imparted to the material.

95. In a device of the class described, in combination with a. chamber provided with a lining, of removable jet and impact blocks of refractory material mounted therein,

pressure jets for impelling the material into said chamber in difierent lines and against different impact blocks, each block having faces disposed at an angle tothe line of pro jection of the coacting jet Signed at New York, in the county of New York, and State of New York, this 19th day of August, A. D. 1925.

wanrna s. Monron. 

